To prevent the “backwards compatibility issue”, we could include this change in the next version of CDM. Even if it’s just a mini-version update (like v5.0.1 to v5.0.2). I know that it is not ideal, but it would fix a lot of problems.
For the record, I support the “Inpatient/Emergency” visit type, since is applicable to all claims databases that store inpatient facility claims.